Here's the code:
<script >
function Calculate() {
var Original = document.getElementById("V1").value;
var New = Original * 1.06;
document.getElementById("Result").innerHTML = "Result = " + New;
}
</script>
<input id="V1" placeholder="Enter a number here..."/>
<input id="Submit" value="Submit" onclick="Calculate()"/>
<br><br>
<div id="Result"></div>